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Find the Mean 3 , 0.75+5.5+7.5

$3$ ,

$0.75 + 5.5 + 7.5$

Step 1

Add

$0.75$ and

$5.5$ .

$3, 6.25 + 7.5$

Step 2

Add

$6.25$ and

$7.5$ .

$3, 13.75$

Step 3

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{3 + 13.75}{2}$

Step 4

Add

$3$ and

$13.75$ .

$\frac{16.75}{2}$

Step 5

Divide

$16.75$ by

$2$ .

$8.375$

Step 6

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

$8.4$

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